On the 2nd day of the multiple fires throughtout in the Bay Area, I thought, being still an hour away from any of the major ones, that our air quality was still ok. I was wrong. After only a short period outside, my lungs were burning. I had a travel size of Biodefense and decided to try it out. Just one of the little dropper in the back of my throat, and it did not take long before I could breathe again without it hurting. I looked up the ingredients on the US National Library of Medicine National Insitute of Health's website and was pleasantly surprised to read that they're not just known to support the immune system but actually said, helps reduce respiratory stress, help fight infections, and improve lung health.